ὀρθόγραμμος

From LSJ

ἔνθα μὲν οὔτε βοῶν οὔτ' ἀνδρῶν φαίνετο ἔργα → from there no works of men or oxen appeared

Source

Greek (Liddell-Scott)

ὀρθόγραμμος: -ον, ὁ ἔχων ὀρθὰς γραμμάς, Ψευδο-Διον. 708C.